Add QML API

Change-Id: I56fe77b473c9422870c71f055e9ebf818f70e0b5
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>

16 files changed, 1194 insertions, 1 deletions

diff --git a/examples/opcua/waterpump/waterpump-qml/MachineDisplay.qml b/examples/opcua/waterpump/waterpump-qml/MachineDisplay.qml
new file mode 100644
index 0000000..d4b0edb
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/MachineDisplay.qml
@@ -0,0 +1,124 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Layouts 1.3
+import QtQuick.Controls 2.3
+import QtOpcUa 5.12 as QtOpcUa
+import "qrc:/machine"
+
+RowLayout {
+    property Machine machine
+    property QtOpcUa.Connection connection
+
+    opacity: connection.connected ? 1.0 : 0.25
+    Tank1Unit {
+        startButtonEnabled: connection.connected && machine.state === Machine.MachineState.Idle &&
+                            machine.tank1.percentFilled > 0 && machine.tank2.percentFilled < machine.tank2.targetPercent
+        stopButtonEnabled: connection.connected && machine.state === Machine.MachineState.Pumping
+        percentFilled: machine.tank1.percentFilled
+
+        id: tank1unit
+        Layout.fillHeight: true
+        Layout.fillWidth: true
+
+        Component.onCompleted: {
+            tank1unit.startPump.connect(machine.startMethod.callMethod)
+            tank1unit.stopPump.connect(machine.stopMethod.callMethod)
+        }
+    }
+    Pump {
+        machineIsPumping: machine.state === Machine.MachineState.Pumping
+
+        Component.onCompleted: {
+            machine.tank2.onPercentFilledChanged.connect(rotatePump)
+        }
+    }
+    Tank2Unit {
+        flushButtonEnabled: connection.connected && machine.state === Machine.MachineState.Idle && machine.tank2.percentFilled > machine.tank2.targetPercent
+        percentFilled: machine.tank2.percentFilled
+        valveState: machine.tank2valveState
+
+        Layout.fillHeight: true
+        Layout.fillWidth: true
+
+        id: tank2unit
+
+        Component.onCompleted: {
+            tank2unit.flushTank.connect(machine.flushMethod.callMethod)
+        }
+    }
+    Slider {
+        id: setpointSlider
+        Layout.fillHeight: false
+        Layout.preferredHeight: tank1unit.tankHeight
+        Layout.alignment: Qt.AlignBottom
+        enabled: connection.connected && machine.state === Machine.MachineState.Idle
+        from: 0
+        to: 100
+        value: machine.tank2.targetPercent
+        live: false
+        stepSize: 1.0
+        orientation: Qt.Vertical
+        onValueChanged: {
+            machine.tank2.targetPercent = value;
+        }
+    }
+    ValueDisplay {
+        designation: machine.designation
+        percentFilledTank1: machine.tank1.percentFilled
+        percentFilledTank2: machine.tank2.percentFilled
+        targetPercentTank2: machine.tank2.targetPercent
+        machineState: machine.state === Machine.MachineState.Idle ?
+                          "Idle" : (machine.state === Machine.MachineState.Pumping ? "Pumping" : "Flushing")
+        valveState: machine.tank2valveState
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/Pump.qml b/examples/opcua/waterpump/waterpump-qml/Pump.qml
new file mode 100644
index 0000000..c6988d1
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/Pump.qml
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+
+Rectangle {
+    property bool machineIsPumping;
+
+    function rotatePump() {
+        if (machineIsPumping)
+            rotation += 15
+    }
+
+    id: pump
+    width: 40
+    height: 40
+    radius: width / 2
+    color: machineIsPumping ? "#00BFFF" : "lightgrey"
+    Rectangle {
+        antialiasing: true
+        width: height / 4
+        height: pump.width * 0.75
+        anchors.centerIn: parent
+        color: "grey"
+    }
+    Rectangle {
+        antialiasing: true
+        width: pump.width * 0.75
+        height: width / 4
+        anchors.centerIn: parent
+        color: "grey"
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/ServerControl.qml b/examples/opcua/waterpump/waterpump-qml/ServerControl.qml
new file mode 100644
index 0000000..867308a
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/ServerControl.qml
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.3
+import QtOpcUa 5.12 as QtOpcUa
+
+RowLayout {
+    readonly property alias backend: backendSelector.currentText
+    property QtOpcUa.Connection connection
+    signal resetSimulation()
+
+    TextField {
+        id: uaUrl
+        Layout.fillWidth: true
+        text: "opc.tcp://127.0.0.1:43344"
+    }
+    ComboBox {
+        id: backendSelector
+        model: connection.availableBackends
+    }
+
+    Button {
+        text: connection.connected ? "Disconnect" : "Connect"
+        enabled: connection.availableBackends.length > 0
+        onClicked: {
+            if (connection.connected)
+                connection.disconnectFromEndpoint()
+            else
+                connection.connectToEndpoint(uaUrl.text)
+        }
+    }
+    Button {
+        text: "Reset simulation"
+        enabled: connection.connected
+        onClicked: resetSimulation()
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/Tank1Unit.qml b/examples/opcua/waterpump/waterpump-qml/Tank1Unit.qml
new file mode 100644
index 0000000..eb8410d
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/Tank1Unit.qml
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.3
+
+Item {
+    property alias tankHeight: tank1.height
+    property alias startButtonEnabled: startButton.enabled
+    property alias stopButtonEnabled: stopButton.enabled
+    property alias percentFilled: tank1.percentFilled
+    signal startPump()
+    signal stopPump()
+
+    ColumnLayout {
+        anchors.fill: parent
+        RowLayout {
+            Button {
+                id: startButton
+                text: "Start"
+                onClicked: startPump()
+            }
+            Button {
+                id: stopButton
+                text: "Stop"
+                onClicked: stopPump()
+            }
+        }
+        TankDisplay {
+            id: tank1
+            Layout.fillHeight: true
+            Layout.fillWidth: true
+        }
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/Tank2Unit.qml b/examples/opcua/waterpump/waterpump-qml/Tank2Unit.qml
new file mode 100644
index 0000000..05efdd6
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/Tank2Unit.qml
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.3
+
+Item {
+    property alias flushButtonEnabled: flushButton.enabled
+    property alias percentFilled: tank2.percentFilled
+    property bool valveState
+    signal flushTank()
+
+    ColumnLayout {
+        anchors.fill: parent
+        Button {
+            id: flushButton
+            text: "Flush"
+            onClicked: flushTank()
+        }
+        Layout.fillHeight: true
+        TankDisplay {
+            id: tank2
+            Layout.fillHeight: true
+            Layout.fillWidth: true
+            Rectangle {
+                color: valveState ? "#00BFFF" : "lightgrey"
+                anchors.top: parent.bottom
+                anchors.right: parent.right
+                width: tank2.width / 10
+                height: 40
+            }
+        }
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/TankDisplay.qml b/examples/opcua/waterpump/waterpump-qml/TankDisplay.qml
new file mode 100644
index 0000000..8de4a07
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/TankDisplay.qml
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+
+Rectangle {
+    property real percentFilled: 0
+    color: "lightgrey"
+    width: parent.width
+    height: parent.height
+    Rectangle {
+        y: parent.height - percentFilled * (parent.height / 100)
+        width: parent.width
+        height: percentFilled * (parent.height / 100)
+        color: "#00BFFF"
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/ValueDisplay.qml b/examples/opcua/waterpump/waterpump-qml/ValueDisplay.qml
new file mode 100644
index 0000000..bb0b22e
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/ValueDisplay.qml
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.3
+
+ColumnLayout {
+    property string designation
+    property int percentFilledTank1
+    property int percentFilledTank2
+    property int targetPercentTank2
+    property string machineState
+    property bool valveState
+
+    Text {
+        font.pointSize: 12
+        text: "<b>Machine Status</b>"
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>Designation:</b> " + designation
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>State:</b> " + machineState
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>Tank 1:</b> " + percentFilledTank1 + "%"
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>Tank 2:</b> " + percentFilledTank2 + "%"
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>Setpoint:</b> " + targetPercentTank2 + "%"
+    }
+    Text {
+        font.pointSize: 10
+        text: "<b>Valve:</b> " + (valveState ? "Open" : "Closed")
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/doc/images/tankexample.jpg b/examples/opcua/waterpump/waterpump-qml/doc/images/tankexample.jpg
new file mode 100644
index 0000000..4c6a429
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/doc/images/tankexample.jpg
diff --git a/examples/opcua/waterpump/waterpump-qml/doc/waterpump-qml.qdoc b/examples/opcua/waterpump/waterpump-qml/doc/waterpump-qml.qdoc
new file mode 100644
index 0000000..982b3af
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/doc/waterpump-qml.qdoc
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example waterpump/waterpump-qml
+    \ingroup qtopcua-examples
+    \title Example using the QML API for Qt OPC UA
+    \brief This example shows how to use Qt OPC UA QML API to interact with an OPC UA
+    server to build a QML based HMI for a simple machine.
+
+    \section1 Introduction
+    This example shows how to use Qt OPC UA QML API to interact with an OPC UA
+    server to build a QML based HMI for a simple machine.
+
+    \section1 The Simulation
+    The OPC UA server included in this example runs a simulation of a machine
+    containing two tanks, a water pump and a valve. Water can be pumped from the
+    first tank into the second tank and then be flushed from the second tank
+    by opening the valve. Both operations have a user-configurable setpoint
+    which controls how much water is pumped to or flushed from the second tank.
+
+    The following nodes exist on the server:
+
+    \table
+        \header
+            \li NodeId
+            \li Function
+        \row
+            \li ns=2;s=Machine
+            \li The folder containing the method and variable nodes for the machine
+        \row
+            \li ns=2;s=Machine.State
+            \li The state of the machine
+        \row
+            \li ns=2;s=Machine.Tank1.PercentFilled
+            \li The current fill status of the first tank
+        \row
+            \li ns=2;s=Machine.Tank2.PercentFilled
+            \li The current fill status of the second tank
+        \row
+            \li ns=2;s=Machine.Tank2.TargetPercent
+            \li The setpoint for pumping and flushing
+        \row
+            \li ns=2;s=Machine.Tank2.ValveState
+            \li The state of the valve of the second tank
+        \row
+            \li ns=2;s=Machine.Designation
+            \li A human readable designation of the machine for display purposes
+        \row
+            \li ns=2;s=Machine.Start
+            \li Call this method to start the pump
+        \row
+            \li ns=2;s=Machine.Stop
+            \li Call this method to stop the pump
+        \row
+            \li ns=2;s=Machine.FlushTank2
+            \li Call this method to flush tank 2
+    \endtable
+
+    \section1 Implementation
+
+    This example uses QML items to read and write values as well as method calls.
+    All operations are asynchronous and handled by QML in the background.
+
+    A QML item represents the machine and its components. This item does not have any
+    graphical interface and only provides access to the properties of the machine.
+    It has two tanks which are instances of a separate \c Tank component.
+
+    \section2 Properties
+
+    The machine item exposes all properties and subitems as properties.
+
+    \quotefromfile waterpump/waterpump-qml/machine/Machine.qml
+    \dots
+    \skipto readonly
+    \printuntil flushMethod
+    \codeline
+    \dots
+
+    \section2 Asynchronous Handlers
+
+    The asynchronous parts of the API are handled by QML automatically because
+    signals are emitted for every property change by default.
+
+    For example, the button to flush the second tank is enabled
+    only if the backend is connected to the server, the machine is idle, and
+    the tank level is above the setpoint. On click, the flushTank2() method
+    is called on the server.
+
+    \quotefromfile waterpump/waterpump-qml/MachineDisplay.qml
+    \skipto     Tank2Unit
+    \printuntil valveState
+
+    \section1 Usage
+    The server is started automatically by the HMI application.
+    After connecting to the server by clicking the \uicontrol Connect button,
+    drag the slider to set a setpoint, then click \uicontrol Start to start pumping water
+    from the first tank to the second tank. After setting a setpoint lower than
+    the current value of the second tank, a click on \uicontrol Flush opens the valve.
+
+    If there is no water left, click \uicontrol {Reset simulation} to refill the first tank.
+
+    \image tankexample.jpg
+*/
diff --git a/examples/opcua/waterpump/waterpump-qml/machine/Machine.qml b/examples/opcua/waterpump/waterpump-qml/machine/Machine.qml
new file mode 100644
index 0000000..217a3dc
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/machine/Machine.qml
@@ -0,0 +1,169 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtOpcUa 5.12 as QtOpcUa
+
+Item {
+    readonly property alias tank1: tank1
+    readonly property alias tank2: tank2
+    readonly property alias state: machineState.value
+    readonly property alias tank2PercentFilled: tank2.percentFilled
+    readonly property alias tank2valveState: tank2.valveState
+    readonly property alias designation: designation.value
+    property alias resetMethod: resetMethod
+    property alias startMethod: startMethod
+    property alias stopMethod: stopMethod
+    property alias flushMethod: flushMethod
+
+    QtOpcUa.NodeId {
+        identifier: "s=Machine"
+        ns: "Demo Namespace"
+        id: machineNodeId
+    }
+
+    QtOpcUa.MethodNode {
+        nodeId: machineNodeId
+        objectNodeId : QtOpcUa.NodeId {
+            identifier: "s=Machine.Start"
+            ns: "Demo Namespace"
+        }
+        id: startMethod
+    }
+
+    QtOpcUa.MethodNode {
+        nodeId: machineNodeId
+        objectNodeId : QtOpcUa.NodeId {
+            identifier: "s=Machine.Stop"
+            ns: "Demo Namespace"
+        }
+        id: stopMethod
+    }
+
+    QtOpcUa.MethodNode {
+        nodeId: machineNodeId
+        objectNodeId : QtOpcUa.NodeId {
+            identifier: "s=Machine.FlushTank2"
+            ns: "Demo Namespace"
+        }
+        id: flushMethod
+    }
+
+    QtOpcUa.MethodNode {
+        nodeId: machineNodeId
+        objectNodeId : QtOpcUa.NodeId {
+            identifier: "s=Machine.Reset"
+            ns: "Demo Namespace"
+        }
+        id: resetMethod
+    }
+
+    enum MachineState {
+        Idle = 0,
+        Pumping = 1,
+        Flushing = 2
+    }
+
+    Tank {
+        id: tank1
+        tankNode: QtOpcUa.Node {
+                      nodeId: QtOpcUa.NodeId {
+                        identifier: "s=Machine.Tank1"
+                        ns: "Demo Namespace"
+                      }
+        }
+    }
+
+    Tank {
+        id: tank2
+        tankNode: QtOpcUa.Node {
+                      nodeId: QtOpcUa.NodeId {
+                            identifier: "s="  + tank2.tankName
+                            ns: "Demo Namespace"
+                      }
+        }
+        property alias targetPercent: targetPercent.value
+        readonly property string tankName: "Machine.Tank2"
+        readonly property alias valveState: valveState.value
+
+        QtOpcUa.ValueNode {
+            nodeId: QtOpcUa.NodeId {
+                identifier: "s=" + tank2.tankName + ".TargetPercent"
+                ns: "Demo Namespace"
+            }
+            id: targetPercent
+        }
+
+        QtOpcUa.ValueNode {
+            nodeId: QtOpcUa.NodeId {
+                identifier: "s=" + tank2.tankName + ".ValveState"
+                ns: "Demo Namespace"
+            }
+            id: valveState
+        }
+    }
+
+    QtOpcUa.ValueNode {
+        nodeId: QtOpcUa.NodeId {
+            identifier: "s=Machine.State"
+            ns: "Demo Namespace"
+        }
+        id: machineState
+    }
+
+    QtOpcUa.ValueNode {
+        nodeId: QtOpcUa.NodeId {
+            identifier: "s=Machine.Designation"
+            ns: "Demo Namespace"
+        }
+        id: designation
+    }
+}
+
diff --git a/examples/opcua/waterpump/waterpump-qml/machine/Tank.qml b/examples/opcua/waterpump/waterpump-qml/machine/Tank.qml
new file mode 100644
index 0000000..51ab83d
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/machine/Tank.qml
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtOpcUa 5.12 as QtOpcUa
+
+Item {
+    property QtOpcUa.Node tankNode
+    readonly property alias percentFilled: filledState.value
+
+    QtOpcUa.ValueNode {
+        nodeId: QtOpcUa.RelativeNodeId {
+                      startNode: tankNode.nodeId
+                      path:  [
+                          QtOpcUa.RelativeNodePath {
+                              ns: "Demo Namespace"
+                              browseName: "PercentFilled"
+                          }
+                      ]
+                }
+        id: filledState
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/main.cpp b/examples/opcua/waterpump/waterpump-qml/main.cpp
new file mode 100644
index 0000000..f643b3b
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/main.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QFile>
+#include <QDebug>
+#include <QProcess>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QString serverExePath;
+#ifdef Q_OS_WIN
+    #ifdef QT_DEBUG
+        serverExePath = app.applicationDirPath().append("/../../simulationserver/debug/simulationserver.exe");
+    #else
+        serverExePath = app.applicationDirPath().append("/../../simulationserver/release/simulationserver.exe");
+    #endif
+#else
+    serverExePath = app.applicationDirPath().append("/../simulationserver/simulationserver");
+#endif
+
+    if (!QFile::exists(serverExePath)) {
+        qWarning() << "Could not find server executable:" << serverExePath;
+        return EXIT_FAILURE;
+    }
+
+    QProcess serverProcess;
+
+    serverProcess.start(serverExePath);
+    if (!serverProcess.waitForStarted()) {
+        qWarning() << "Could not start server:" << serverProcess.errorString();
+        return EXIT_FAILURE;
+    }
+
+    QQmlApplicationEngine engine;
+    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
+    if (engine.rootObjects().isEmpty())
+        return EXIT_FAILURE;
+
+    return app.exec();
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/main.qml b/examples/opcua/waterpump/waterpump-qml/main.qml
new file mode 100644
index 0000000..5f04832
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/main.qml
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 basysKom GmbH, opensource@basyskom.com
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the QtOpcUa module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.10
+import QtQuick.Window 2.2
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.3
+import QtOpcUa 5.12 as QtOpcUa
+import "qrc:/machine"
+
+Window {
+    visible: true
+    width: 800
+    height: 600
+    minimumWidth: 800
+    minimumHeight: 600
+    title: "OPC UA Tank Example"
+
+    QtOpcUa.Connection {
+        id: connection
+        backend: serverControl.backend
+        defaultConnection: true
+    }
+
+    Machine {
+        id: machine
+    }
+
+    ColumnLayout {
+        anchors.margins: 10
+        anchors.fill: parent
+        spacing: 45
+        ServerControl {
+            id: serverControl
+            connection: connection
+        }
+        MachineDisplay {
+            Layout.fillHeight: true
+            machine: machine
+            connection: connection
+        }
+        Text {
+            id: messageText
+            font.pointSize: 10
+          //  FIXME text: uaBackend.message
+        }
+    }
+
+    Component.onCompleted: {
+        serverControl.resetSimulation.connect(machine.resetMethod.callMethod)
+    }
+}
diff --git a/examples/opcua/waterpump/waterpump-qml/qml.qrc b/examples/opcua/waterpump/waterpump-qml/qml.qrc
new file mode 100644
index 0000000..b4d9f70
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/qml.qrc
@@ -0,0 +1,14 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+        <file>TankDisplay.qml</file>
+        <file>Tank1Unit.qml</file>
+        <file>Tank2Unit.qml</file>
+        <file>ValueDisplay.qml</file>
+        <file>ServerControl.qml</file>
+        <file>Pump.qml</file>
+        <file>MachineDisplay.qml</file>
+        <file>machine/Tank.qml</file>
+        <file>machine/Machine.qml</file>
+    </qresource>
+</RCC>
diff --git a/examples/opcua/waterpump/waterpump-qml/waterpump-qml.pro b/examples/opcua/waterpump/waterpump-qml/waterpump-qml.pro
new file mode 100644
index 0000000..a611823
--- /dev/null
+++ b/examples/opcua/waterpump/waterpump-qml/waterpump-qml.pro
@@ -0,0 +1,6 @@
+QT += quick
+CONFIG += c++11
+SOURCES += main.cpp
+RESOURCES += qml.qrc
+target.path = $$[QT_INSTALL_EXAMPLES]/opcua/waterpump/waterpump-qml
+INSTALLS += target
diff --git a/examples/opcua/waterpump/waterpump.pro b/examples/opcua/waterpump/waterpump.pro
index 9610c1b..1b9f2bd 100644
--- a/examples/opcua/waterpump/waterpump.pro
+++ b/examples/opcua/waterpump/waterpump.pro
@@ -1,2 +1,2 @@
 TEMPLATE = subdirs
-SUBDIRS += simulationserver waterpump-qmlcpp
+SUBDIRS += simulationserver waterpump-qmlcpp waterpump-qml